Bead-rolling machine



I. F. PIERCE.

BEAD ROLLING MACHINE.

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BEAD ROLLING MACHINE.

APPLICATION FILED NOV. 19, 1917.

1 ,370,557. Patented Mar. 8, 1921.

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J. F. PIERCE.

BEAD RGLLING MACHINE. APPLICATION FILED Nov.19, I917.

Patented Mar. 8, 1921.

6 SHEETS-SHEET 3.

FIG- M Meme/W J. F. PIERCE.

BEAD ROLLING MACHINE.

APPLICATION FILED Nov.19,1917.

Patend Mar. 8, 1921.`

6 SHEETS-SHEET 4.

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J. F. PIERCE.

BEAD ROLLING MACHINE.

APPLICATION FILED Nov.19. I9I7.

1,370,551 Patented Mar. 8, 1921.

6 SHEETS-SHEET 5.

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I'. F. PIERCE.

BEAD ROLLING MACHINE.

- APPLICATION FILED NOV. 19| I9I.

1 ,370,55'7, .Patented Mar. 8, 1921.

6 SHEETS-SHEET 6.

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.Mums r. riuscii, or animaron, DELAWARE, AssioNon To mexican. vumnmznn FIBRE C0., F WILMINGTON, II)EIIIA`W.AB.E, A CORPORATION v0F DELAWARE,

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i Specification of Letters Pate-nt. l Y Patented Mar. 8, 1921.

applicati sied ivovember'is, i917. semi ifo. 202,737.

To all whom t may concern: I

Be it known that I, JAMES F. PIERCE, 0 Glynrich, in the county of New Castle and State of Delaware, have invented certain new and useful Improvements in Bead-Rolling Machines, whereof the followin is a specification, reference being had to t e accompanying drawings.

The invention relates to bead rolling ma chines, such as emplo ed in inishing the edges of the tubular orins constructed oi" liber, sheet metal or the like.

The invention is directed to a machine of the above class in which the edges of atube may be beaded with or without the inclusion of a reinforcing Y The invention further includes devices whereby the tube is rst accuratel' aged ee calpria e re aratory to being advanced `t e nienslbylizvhich the beading is accomplished.

The invention Aalso comprehends a bead. rolling chuck which is capable of adaptation to finishing tubes 'of various diameters.

The structure/by which I attain these ends will be best understood b Yreference to the accoilnpnn ing drawings, 1n which- Figure ,is a plan view of a beading inachine convenientl embodying my invention.

Fig. II, is a si e elevation of the same.

Fig. II'I, is an elevation of the right hand end of the machine as viewed in Figs. I, and II. .V

Fig. IV, isa transverse sectional elevation of the same looking in the direction of the arrows IV-'IV in Fig. II.

Fig.v V, is a sectional view through the Lube lunp as indicated by arrows V-V, in

Fig. VI, is a partial longitudinal sectional view illustrating the relative positions of the chuck and the tube clamp during the forrnation of a bead upon the end of a tube.

Fig. VII, is a detail sectional view through the chuck along the line VII- VII in Fig. IV. Y

Fig. VIII, is a partial transverse sectional view through the machine looking rearwardly in the direction of arrows TIII- VIII in Fig. II, and

Fi IX, is a detail view through the adjusta le thrust bearing for the chuck spindle.v In the drawings 1, represents the main housing for the driving elements of the machineand this is suppleinen'ted by an end bar s 3-3, and tie bar 4, upon the former of which a feed carriage is supported. The driving organization for the machine in# cludes a cone pulley 5, mounted'on a shaft 6, witha pinion which meshes with a gear 8, on the chuck spindle 9 Said spindle is Journaled in bearings 10, and 11, of which the latter is illustrated in detail in Fi IX. The thrust of the spindle is opposed y an .adjustable screw 12, threaded into the end of the bearing 11, and fixed in adjusted position by means qf a 'am nut 13. Fixed upon the inner end of t e spindle is a chuck comprehensively indicated at 15, and ada ted for continuous rotation under the drive of the geared connections already described.

The construction of this chuck .will be bestunderstood from Figs. IV, VI, and VII, Whereinit will be'noted that it com rises an annular Vsu porting disk 16, which is centrall tliie ed toenga the end of spindle 9. he face of the diseis radially channeled at right angles as shown at 17-17 in Fig. IV, to afford slideways for brackets 18, in which rollers 19, are supported for free rotation. Brackets 18, are adjustably fixed to disk 16, by screw bolts 20, which extend through slots 21, in line with channels 17. The chuck further comprises an annuliis 25, having the cross section shown in Fig. VII, but which, as illustrated in Fig. VI, is cut away as at 22, to. permit the protrusion of the rollers 19. This' annulus is directly bolted to disk 16, at oints 26, intermediate of the radial channels 17, and'its exposed face 27, is rovided with a circular groove 28, which orins an unbroken continuation of the-cross sectional contours of the grooves in rollers 19. Annulus 25, is further provided with a horizontally extending flange `29, which is -also interrupted for the protrusion of rollers 19, but is otherwise con-- tinuous to afford a support for the tube dui'- ing the beadin operation. This tube is represented by t e letter T in the several figures.

As a consequence of this arrangement, the

frame 2, Yrigidly attached by means of tie chuck may be adapted to rolling tubes of t various diameters by replacing annulus 25, with another of the proper size, and by accordingly adjusting the rollers 19, along the radial grooves 17.

In its presentment to the chuck, .the tube is supported on a carriage 30, which is mounted for horizontal guidance upon the tie rods 3-3, already referred to. This carriage includes a clamp 31, consisting of a lower member 32, and an upper member 36, which is complementary to the lower member in completing the circle within which the tube is received. Said lower` member is of semi-circular contour and provided with lateral extensions 33, which are bolted to sleeves 35, adapted to slide upon the tie bars 3 3. In order to facilitate the insertion of a tube, the upper member is hinged to member 32, at a point 37, and maintained in closed position by a locking wedge 38, fulcrumed at 39, and provided with an o erating handle 40. Slight variations in t e diameter ofthe tubes are automatically compensated for by a circular s e ment 45, yieldlngly mounted to play wltjin an opening formed in the lower member 32, of the clamp. Fixed in integral bosses 46, of the lsegment are depending pins 47, which are guided in a semi-.circular bracket 48, and the protruding ends of said pins 47, are pointed to engage a bridging piece 49, which 1s subject to the compresslve force of a spring 50.

i nutl 52, threa ed upon rod 51.

Said spring encircles a rod 51, which is xed to bracket 48, and depends throu h an aperture in bridging piece 49. ension of spring 50, ma be adjusted by means of a Tubes of slightly varying diameters will thus be firmly held in lace in the clamp under the springactuate segment 45.

The clamp is supplemented by a holder collar 55, which is divided into -two sections 56, and 57, in correspondence with-the clamp members 32, and 33, and respectively united thereto by means of a series of bolts 58, fixed in the collar sections and slidably mounted in peripheral bosses 59, on the said clamp members. Springs 60, encircle these bolts and are interposed between the collar 55, and the clamp proper and are effective under the limitations imposed by the heads 61, of the said bolts.

When a reinforcing metallic ring R, is incorporated within the head as shown in Fig. I, the collar 55, becomes functional in keeping the ring pressed forward u nder the yieldin pressure o f springs 60, irrespective of the Iorward movement of the entire tube in bead formation.

At the rear end, the tube T rests upon a transverse` support comprising a pair -of arms 62, and 63 which are pivotally suspended from col lars 65-65, also sl'idableupon the rods 3-3. The outer ends of the.

structed is adapted to be manually advanced in a direction toward the chuck 15, through the instrumentality of the parts about to be described.

Extending rearwardly from the collars 65, are toothed racks 7 0-70, which are coperative with gear inions 71-71, fixed upon a transverse shafpt 72, journaled in brackets T3-73, of the end frame 2. Engagement between the racks and these respective pinions is' positively assured by guide rollers 75--75, which are mountedfor free rotation 1n bearing brackets 73, and engage the top edges of the said racks. Shaft may be rotated in either direction by the cross hand wheel 7 6.

In order that the tubes may be uniformly placed in proper position on the carnage, a

55, for the proper .formation of the bead, see Figs. Land II. Adjustmentof the gage is accomplished by means of screws 81-81, fixed to the ends of bar 80, and longitudinally shiftable by means of nuts 82-82, in brackets 83-83, secured to the rack members 70, within which said screws are freely received.-

In operation, the tube is placed in the supporting carriage after the manner just described andV the -bead reinforcing ring R placed about the end of the tube protruding forward of the clamp. The carriage is thereafter advanced by turning the wheel 76. In its forward advance, the tube end slips over the flange 29, of the chuck annulus 25, and the edges subsequently engage the beading rollers 19. Dur-ing the further advance of the tube under the pressure exerted by the operator in manipulating wheel 76, the bead is gradually formed by the revolving chuck through the coperatlon of its rollers 19, with the circular forming recess "28, inzthe face of the annulus. Coincident with the of the tube protrudes beyond the ring holder I bead formation,`the reinforcing ring R, is

held in lace by the holder` collar 55, which gradual y recedes under the yielding of springs 60, so that when the bead is finally completed the reinforcing ring will be completely enveloped therein.

Having thus described my invention, I claim:

1. In a machine of the class described, the combination of a revolving chuck; a' carriage for the tubes to be beaded; means for advancing said carriage to'present the tubes to the chuck; includmg a frame for slidably supporting said carriage, racks. formed on saidl carria e; pinions coperative with said racks; a s aft for said pinions; a hand wheel for actuating said shaft; a pairvof crossed supporting members pivotally atried by said chuck for forming a bead upon the edge of said tube; means carried solelv by said clamping means Jfor yieldingly hol ing a reinforcinv ring in edecting its envelopment during the beading operation.

3. in a machine of the class described, the combination of a revolvin chuck; means or clampingly engaging e circumferential walls of a tube to hold the same in position to be beaded; means for advancing said clamping means to present the tube to said chuck; .means carried by said chuck for forming a bead upon the edge oit said tube; means for yieldingly holding a reinforcing ring in effecting its envelopment during the beading operation, including a collar slidably connected to said carriage; and springs interposed between said collarA and said carriage.

Ll. ln a machine oi the ciass described, the combination of a chuck including a radially channeled revolving disk; a series of beading rollers radially adjustable within the channels of said disk; a concentric annulus bolted to said disk and slotted to permit the protrusion of said rollers therethrough and provided with a circular beading groove cooperative with said rollers; a hangs formed upon said annulus for supporting the tube to be beaded from within; a carriage for the said tube and means for advancing said carriage to present the tube to the beading devices of the chuck.

5. In a machine of the class described, the combination of a chuck including-a rotating disk having its face provided wlth a circular beading groove, a series of beadin .rollers functionally coperating with sai groove, means for supporting a tube to be beaded, a cross bar forming an abutment for said tube, and means for independently adjusting said cross bar in respect to said carriage, whereby the end of the tube is caused to engage the bottom of the groove in the disk.

6. In a machine of the class described, the combination of a chuck including a rad1ally channeled revolving disk, a series of beading rollers radially radjustable Within the channels of said disk, a concentric annulus bolted to said disk and slotted to permit the protrusion of said rollers therethrough and provided with a circular beadin groove cooperating with said rollers, a carriage for supporting the tube, means for adjusting' the tube laterally on the carriage, and means for'advancing said carriage to present the tube to the beading devices of the chuck.

7. In a machine of the class described, the.

combination of a chuck including a radially channeled revolving disk, a series of beading rollers radially `adjustable within lthe channels of said disk, `a concentric annulus bolted to said disk and slotted to permit the protrusion of said rollers therethrough and provided with a circular beading groove cooperating with said rollers, a carriage for supporting the tube', and means for advancing said carriage to present the tube to the beading devices of the chuck.

8. ln a machine of the class described, the combination of a revolving chuck, a carriage for the tubes to be beaded, means for advancing said carriage to present the tubes to the chuck, adjustable means on said car riage constructed and arranged to clamp one end of tubes of variant:` size, and adjustable means on saidv carriage-for freely supporting the other end of a tube.

9. ln a machine of the class described, the

combination of a revolving chuck, `a carriage for the tubes to be beaded, means for advancing said carriage to present the tubes to the chuck, means on said'carri'age adapted to clamp one end of tubes of variant size,l a pair ci'l cross supporting members pivotally attached to said carriage for supporting the other end of the tube, and means for rela sined my name at Wilmington, Delaware, 

